Empty needle capable of accurately dosing reagent

Abstract

The invention discloses an empty needle capable of accurately dosing a reagent, and relates to the technical field of empty needles, and the empty needle is characterized by comprising a syringe and a rotating handle, one end, close to the syringe, of the rotating handle is provided with a rotating piece, the rotating piece is rotatably connected with a handheld barrel, the cylindrical surface of the rotating piece is provided with external threads, and the rotating piece is in threaded connection with a boosting barrel; the boosting cylinder is hollow inside, the boosting cylinder is movably connected with the handheld cylinder, an elastic plug is arranged at one end, close to the injection cylinder, of the boosting cylinder, the elastic plug is movably connected with the injection cylinder, and the injection cylinder is detachably connected with the handheld cylinder. The device has the effects of facilitating accurate control, avoiding pollution and reading numerical values.

Description

Technical Field

[0001] The present invention relates to the technical field of empty needles, and more particularly to an empty needle capable of accurately dosing a reagent. Background Art

[0002] At present, the existing syringes on the market cannot meet the needs of accurate injection of partial liquid medicine during medical research injection, and have the following disadvantages: on the one hand, the linear motion of the common syringe push rod on the market cannot guarantee accurate injection dosage, on the other hand, the syringe push rod is exposed to the outside and is easily contaminated during operation, which may contaminate the reagent and affect the experimental results. At the same time, visual scale lines are prone to errors. In view of this, the inventors propose an empty needle that can accurately dose reagents. Summary of the invention

[0003] The purpose of the present invention is to provide an empty needle capable of accurately dosing reagents to solve the above problems.

[0004] The above technical purpose of the present invention is achieved through the following technical scheme: an empty needle that can accurately dose reagents, comprising a syringe and a rotating handle, wherein the rotating handle is provided with a rotating part at one end close to the syringe, and the rotating part is rotatably connected to a hand-held barrel, and the cylindrical surface of the rotating part is provided with an external thread, and the rotating part is threadedly connected to a booster barrel, the booster barrel is hollow inside, and the booster barrel is movably connected to the hand-held barrel, and the booster barrel is provided with an elastic plug at one end close to the syringe, and the elastic plug is movably connected to the syringe, and the syringe and the hand-held barrel are detachably connected.

[0005] By adopting the above technical solution, the staff holds the handheld tube with their hands and uses their thumb to turn the rotating handle. The rotating handle drives the rotating part, the booster tube and the elastic plug to move, thereby changing the linear motion of the traditional syringe push rod into a rotationally controlled push rod to advance, which can better and more accurately control the injection measurement.

[0006] The present invention is further configured as follows: a connecting tube is provided at one end of the hand-held tube close to the injection tube, a thread is provided on the outer surface of the connecting tube, and the connecting tube is threadedly connected to the injection tube.

[0007] By adopting the above technical solution, the connecting tube and the injection tube are threadedly connected, which is convenient for cleaning and multiple recycling.

[0008] The present invention is further configured as follows: a limiting groove is provided on the outer surface of the booster cylinder, a limiting convex column corresponding to the limiting groove is provided on the connecting cylinder, and the booster cylinder is slidably connected to the connecting cylinder.

[0009] By adopting the above technical solution, a limiting groove and a limiting convex column are additionally provided, so that the spiral motion of the rotating member driven by the rotating handle is converted into a linear motion.

[0010] The present invention is further configured as follows: the cylindrical surface of the injection barrel is connected with an enlargement groove, the enlargement groove is detachably connected with a cylindrical lens, and the cylindrical lens focuses on the scale line.

[0011] By adopting the above technical solution and adding a cylindrical lens, it is easier for workers to read the values ​​and adjust the rotating handle to accurately control the measurement.

[0012] The present invention is further configured such that: the cylindrical surface of the rotating handle is provided with textures.

[0013] The present invention is further configured such that: the injection barrel is detachably connected to a needle.

[0014] The present invention is further configured such that: a limiting member is provided at one end of the rotating member close to the rotating handle.

[0015] In summary, the present invention has the following beneficial effects:

[0016] Facilitates precise control of metering: (1) The staff member holds the hand-held tube and uses the thumb to turn the rotating handle, which drives the rotating part, the booster tube and the elastic plug to move, thereby changing the linear motion of the traditional syringe push rod into a rotary control push rod, which can better and more accurately control the injection metering; (2) The built-in booster tube can effectively avoid contamination during operation, thereby avoiding contamination of reagents affecting the experimental results; (3) The addition of a cylindrical lens makes it easier for the staff member to read the value and adjust the rotating handle to accurately control the metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of an empty needle capable of accurately dosing reagents in an embodiment of the present invention;

[0018] Figure 2 is a bottom view of an empty needle capable of accurately dosing reagents in an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of an empty needle AA that can accurately dose reagents in an embodiment of the present invention;

[0020] Figure 4 is a front view of the internal structure of an empty needle capable of accurately dosing reagents in an embodiment of the present invention;

[0021] Figure 5 It is a cross-sectional view of an empty needle BB that can accurately dose reagents in an embodiment of the present invention.

[0022] In the figure: 1. Injection cylinder; 2. Hand-held cylinder; 3. Rotating handle; 4. Magnifying groove; 5. Cylindrical lens; 6. Needle; 7. Rotating member; 8. Limiting member; 9. Boosting cylinder; 10. Elastic plug; 11. Connecting cylinder; 12. Limiting groove; 13. Limiting protrusion. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example:

[0025] A hollow needle for accurately dosing reagents, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes an injection barrel and a rotating handle. A rotating part is provided at one end of the rotating handle close to the injection barrel. The rotating part is rotatably connected to a hand-held barrel. An external thread is provided on the cylindrical surface of the rotating part. The rotating part is threadedly connected to a booster barrel. The booster barrel is hollow inside. The booster barrel is movably connected to the hand-held barrel. An elastic plug is provided at one end of the booster barrel close to the injection barrel. The elastic plug is movably connected to the injection barrel. The injection barrel and the hand-held barrel are detachably connected.

[0026] In this embodiment, a connecting tube is provided at one end of the hand-held tube close to the injection tube, a thread is provided on the outer surface of the connecting tube, and the connecting tube is threadedly connected to the injection tube.

[0027] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, a limiting groove is provided on the outer surface of the booster cylinder, and a limiting convex column corresponding to the limiting groove is provided on the connecting cylinder, and the booster cylinder is slidably connected with the connecting cylinder.

[0028] In this embodiment, the cylindrical surface of the injection barrel is connected with an enlargement groove, the enlargement groove and the injection barrel are integrally formed, and the enlargement groove is detachably connected with a cylindrical lens, and the cylindrical lens focuses on the scale line.

[0029] By adopting the above technical solution and adding a cylindrical lens, it is easier for workers to read the values ​​and adjust the rotating handle to accurately control the measurement.

[0030] In this embodiment, the cylindrical surface of the rotating handle is provided with textures.

[0031] In this embodiment, the syringe is detachably connected to the needle.

[0032] In this embodiment, a limiting member is provided at one end of the rotating member close to the rotating handle.

[0033] Working principle:

[0034] When in use, the staff holds the handheld tube and uses the thumb to move the rotating handle, which drives the rotating part to move. The rotating part is threadedly connected to the booster tube, and limiting grooves and limiting protrusions are added to convert the spiral motion of the rotating part driven by the rotating handle into linear motion. The linear motion of the traditional syringe push rod is changed into a rotation-controlled push rod advancement, which can better and more accurately control the injection measurement. A cylindrical lens is added to facilitate the staff to read the numerical value, so that the staff can directly and accurately configure and read the required reagent measurement.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An empty needle capable of accurately dosing a reagent, characterized by: The invention comprises an injection barrel (1) and a rotating handle (3), wherein a rotating member (7) is provided at one end of the rotating handle (3) close to the injection barrel (1), wherein the rotating member (7) is rotatably connected to a hand-held barrel (2), wherein an external thread is provided on the cylindrical surface of the rotating member (7), wherein the rotating member (7) is threadably connected to a booster barrel (9), wherein the booster barrel (9) is hollow inside, wherein the booster barrel (9) is movably connected to the hand-held barrel (2), wherein an elastic plug (10) is provided at one end of the booster barrel (9) close to the injection barrel (1), wherein the elastic plug (10) is movably connected to the injection barrel (1), and wherein the injection barrel (1) is detachably connected to the hand-held barrel (2).

2. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: A connecting tube (11) is provided at one end of the hand-held tube (2) close to the injection tube (1), and a thread is provided on the outer surface of the connecting tube (11). The connecting tube (11) is threadedly connected to the injection tube (1).

3. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: The outer surface of the booster cylinder (9) is provided with a limiting groove (12), the connecting cylinder (11) is provided with a limiting convex column (13) corresponding to the limiting groove (12), and the booster cylinder (9) is slidably connected to the connecting cylinder (11).

4. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: The cylindrical surface of the injection barrel (1) is connected to an enlargement groove (4), and the enlargement groove (4) is detachably connected to a cylindrical lens (5), and the cylindrical lens (5) focuses on the scale line.

5. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: The cylindrical surface of the rotating handle (3) is provided with textures.

6. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: The injection cylinder (1) is detachably connected to a needle (6).

7. The empty needle capable of accurately dosing a reagent according to claim 1, characterized in that: A limiting member (8) is provided at one end of the rotating member (7) close to the rotating handle (3).

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